Home / 187,945,986.60-281,834,999.10-72,892,290.60

Finding the Fourth Proportional to 187,945,986.60, 281,834,999.10 and 72,892,290.60

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Solution

The fourth proportional to 187,945,986.60, 281,834,999.10 and 72,892,290.60 is: 109,305,865.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,945,986.60 : 281,834,999.10 = 72,892,290.60 : x
  2. Step 2: Convert to fraction form
    187,945,986.60/281,834,999.10 = 72,892,290.60/x
  3. Step 3: Cross multiply
    187,945,986.60x = 281,834,999.10 × 72,892,290.60
  4. Step 4: Simplify right side
    187,945,986.60x = 20,543,598,655,647,940
  5. Step 5: Solve for x
    x = 20,543,598,655,647,940/187,945,986.60
  6. Step 6: Final answer
    x = 109,305,865.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.